Sega Mega CD ISO Hacks & Editors

[Tony H]

Which emulator do you recommend for hacking Sega games?

Sega has many different systems, but since this is in a Sega CD thread, I'll assume you're talking about SCD.

If this is your first attempt at hacking, I wouldn't recommend starting off with Sega CD. You would probably be better off starting with Sega Genesis, since there are better tools available for hacking. Sega Genesis and Sega CD both use the same assembly language (68000), so once you learn how to hack Genesis games, moving over to SCD will be much easier.

I personally use Gens Tracer for most of my Genesis hacking, but there are other emulators/debuggers that you can use as well.

Here's a link to a guide for Gens Tracer: https://codehut.gshi.org/GensTracerGuide.txt

[Drakula1912]

Which emulator do you recommend for hacking Sega games?

[dingobat]

Nevermind, I eventually found what I was looking for without even using tracing, breakpoints and whatnot.

[CloudXIV]

Yes, something went wrong, the file size should stay the same. When you go to patch the file, make sure you use the same file that you first opened to edit. That's something that I may change in a future update, where it doesn't bring up a window when you press the patch button, and just patches the file. That save window when you click on the Patch button isn't really needed.

Can you send me a PM of where you got that single file from (make sure it's a PM, since ROM links aren't allowed).

EDIT: May as well send me the link where you got the 4 part file from too.

Thanks my man. Overwriting seems to work, I've been making a new file before.

[Tony H]

I have 4 bin files, it only lets me patch the first one, which is 401mb, but the editor makes a 2,75mb file out of it, so I'm assuming something went went wrong.

Edit: Tried a version with a single bin file, same thing happens, I get a 2,75mb file.

Yes, something went wrong, the file size should stay the same. When you go to patch the file, make sure you use the same file that you first opened to edit. That's something that I may change in a future update, where it doesn't bring up a window when you press the patch button, and just patches the file. That save window when you click on the Patch button isn't really needed.

Can you send me a PM of where you got that single file from (make sure it's a PM, since ROM links aren't allowed).

EDIT: May as well send me the link where you got the 4 part file from too.

[CloudXIV]

A code/cheat editor for Popful Mail (Sega CD). Should work on any file type (iso/bin/img), on any version, or with any region (hopefully). All codes should work on all levels.




Update: Forgot to add the .iso file extension to the list of files that you can open. Fixed this in version 1.0a...

[ATTACH]n212757[/ATTACH]

I have 4 bin files, it only lets me patch the first one, which is 401mb, but the editor makes a 2,75mb file out of it, so I'm assuming something went went wrong.

Edit: Tried a version with a single bin file, same thing happens, I get a 2,75mb file.

[Tony H]

Glad to hear the codes are working out.

[Saturn025]

Thanks for these codes, Tony! Been playing Dungeon Explorer a lot the last week and having a blast.

[j1021]

thx you so much!!!! these cheats work great. thx you for taking time out of your day to help me out

[Tony H]

Dungeon Explorer (Sega CD)

Infinite Life

Search for the only occurrence of 936D77AE. Change the 936D at the beginning to 601A:

936D77AE Before
601A77AE After

[Tony H]

A couple more

Dungeon Explorer (Sega CD)

Start with 1500 Food whenever you leave a town (instead of 1000)

Search for the only occurrence of 03E83B40. Change the 03E8 at the beginning to whatever value you want (in hex). Will use 1500 for this example:

03E83B40 Before
05DC3B40 After

----------------------------

Have infinite Food when you're out exploring (away from a town)

Search for the only occurrence of 53416A06. Change the 5341 at the beginning to 6008:

53416A06 Before
60086A06 After

[Tony H]

these cheats are amazing thx you so much. may i request cheats for Dungeon Explorer pls

Have a few done and working on a few more. Kind of a fun game. Zero codes for this on the site, so it's wide open.

Please note that these patches will only work if you start a new game, or use an "in-game" save file. These will probably not work if you use an emulator save state.

Dungeon Explorer (Sega CD)

Open up your Dungeon Explorer ISO/bin/img file with your favorite hex editor.

Walk thru walls, over water, etc.

Note that it is possible to get stuck when entering some buildings (only happens when you enter at a certain angle). If this happens, you can press Start + A + B + C, and the game will do a soft reset and you can reload your previous save point. EDIT: Also, enemies can't follow you into bushes, walls, etc.

Search for 4 occurrences of 670207C45079000076 (one occurrence for each direction: Left, Right, Up, Down).

In each of the 4 matches, change the 67 at the beginning to 60

670207C45079000076 Before
600207C45079000076 After

------------------------

Get more gold from the piles of gold on the ground (not sure if it works on other gold things).

Search for the only occurrence of 000FD480.

To get about 10x more gold from gold piles, change the 000F at the beginning to 00FF

000FD480 Before
00FFD480 After

To get about 100x more gold from gold piles, change the 000F at the beginning to 0FFF

000FD480 Before
0FFFD480 After

-----------------------

Get the maximum amount of gold ($999,999) when you pick up a pile of gold on the ground (this may also work with other times where you get gold).

Search for the only occurrence of 6306243C000F. Replace the 6306 at the beginning with 4E71

6306243C000F Before
4E71243C000F After

[j1021]

Perfect. I'll try to take a look at that tomorrow.

thx you so much again thx you for your work and your time its much appreciated

[Tony H]

basic understanding of it ive open bin files to change address that ive seen posted on here to make those cheats work ive done it few times

Perfect. I'll try to take a look at that tomorrow.

[j1021]

Do you know how to use a hex editor?

basic understanding of it ive open bin files to change address that ive seen posted on here to make those cheats work ive done it few times